To ensure a moisture barrier between the patient and the sterile field, surgical drapes are made of woven and _____ materials

• A. Polypropylene
• B. Linen
• C. Bonded synthetic
• D. Polyester

Answer: (C)

The main idea is that drapes used in surgery must block fluids from reaching the sterile field and the patient. This protection comes from combining the drape’s woven structure—which gives it strength and drapability—with a moisture barrier layer. When you see “woven and bonded synthetic materials,” it signals a fabric that has a waterproof or fluid-impermeable layer bonded to the woven base. That bond creates a reliable barrier to liquids while still being flexible and easy to handle on the sterile field.

Linen, while traditional, does not provide a consistent moisture barrier. Purely synthetic fabrics like polypropylene or polyester can be drapes, but without a bonded barrier layer they may not prevent fluid penetration. The bonded synthetic combination explicitly denotes this moisture-retardant feature essential for maintaining sterility during procedures.